Tight pore size control
This polyethylene membrane features a uniform pore structure with no difference between the surface and back side.
It can be utilized for a variety of collection and separation purposes, from nano to submicron size.
What’s Miraim®?
Miraim® is a high-performance microporous membrane specially engineered with Ultra-High Molecular Weight polyethylene (UHMWPE).
By using a unique film-making technology that Teijin has developed over many years, with its production know-how, the membrane features a combination of the following features: "accurate pore size control", "high porosity" , “chemical stability” and “good mechanical properties”.
By utilize of these characteristics, it can be used in a wide range of fields, such as capturing nano-level particles and removing foreign matter in the electronics filtration field, as a basis for functional membranes in the energy field, moisture-permeable waterproof membranes, breathable membranes and in the life sciences field for the separation of bacteria and proteins.
Features
High Porosity
With porosity ratio of 50 to 90%, achieved high flow rate and low pressure loss.
Cross-section of SEM
Various thickness
We have a wide range of thickness membranes, from extremely thin 5 to 300 μm.
General physical properties
| Pore Size | nm | 30 | 60 | 100 | 200 | 300 | 500 | 800 |
|---|---|---|---|---|---|---|---|---|
| Thickness | μm | 15 | 10 | 15 | 15 | 30 | 100 | 250 |
| Porosity | % | 55 | 55 | 75 | 80 | 85 | 85 | 85 |
| Air Parmeability | Sec/100cc | 100 | 60 | 10 | 8 | 6 | 10 | 7 |
| Base Weight | g/㎡ | 5 | 5 | 4 | 3 | 5 | 15 | 35 |
| Bubble Point Pressure | MPa | 0.6 | 0.5 | 0.2 | 0.2 | 0.1 | 0.04 | 0.03 |
Above figures are typical measured value, not guaranteed values.
For products with pore sizes less than 30 nm, please make an inquire from contact form.
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